ISO 8721:2018

Road vehicles — Measurement techniques in impact tests — Optical instrumentation

This document defines performance criteria for an optical data channel used in impact tests on road vehicles, when numerical time and space data are taken from images to analyse impact test results. The objective of this document is to facilitate comparison between results obtained by different laboratories by specifying minimum quality criteria. Annexes A, B, C and D present a method of measuring several indices like quality parameters of sub processes of the optical data channel, using a calibration target, reference distances and analysis systems.

Véhicules routiers — Techniques de mesure lors des essais de chocs — Instrumentation optique

General Information

• Status: Published
• Publication Date: 24-Jul-2018
• ICS: 43.020 - Road vehicles in general
• Technical Committee: ISO/TC 22/SC 36 - Safety and impact testing
• Drafting Committee: ISO/TC 22/SC 36/WG 3 - Instrumentation
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 07-Mar-2024

Relations

• Revises: ISO 8721:2010 - Road vehicles — Measurement techniques in impact tests — Optical instrumentation
• Effective Date: 27-Aug-2016

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 8721
Third edition
2018-08
Road vehicles — Measurement
techniques in impact tests — Optical
instrumentation
Véhicules routiers — Techniques de mesure lors des essais de chocs —
Instrumentation optique
Reference number
ISO 8721:2018(E)
©
ISO 2018

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ISO 8721:2018(E)

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© ISO 2018
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ii © ISO 2018 – All rights reserved

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ISO 8721:2018(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 5
5 Performance . 7
5.1 General requirements . 7
5.2 Reference distance . 7
5.3 Time base system. 7
5.4 Performance of the optical data channel . 7
5.4.1 General. 7
5.4.2 Performance indices . 7
5.4.3 2D performance value . 8
5.4.4 3D performance value . 8
5.4.5 Performance value of the optical data channel . 9
5.5 Accuracy of the optical data channel . 9
5.5.1 Accuracy indices . 9
5.5.2 Length measurement error and accuracy value of a reference distance .10
5.5.3 Length measurement error and accuracy value of the optical data channel .10
5.6 Types of procedure .11
5.6.1 General.
...